Improvement in machines for making upholstery-springs



UNTTn STaTns O. A. YOUNG AND S. NV. YOUNG,

OF PROVIDENCE, RHODE SLAND.

IMPROVEMENT IN MACHINES FOR MAKING UPHOLSTERY-SPRINGS.

Spccilication forming part of Letters Patent No. m), fated May 3l, 1F59.

To @ZZ whom, it muy concern:

Be it known that we, O. A. YOUNG and S. YV. YOUNG, both of Providence, in the county of Providence and State of Rhode Island -l have invented certain new and useful Improvements in Machinery for Manufacturing Biconical Springs for Upholstery and other Purposes; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specitication, in which- Figure 1 is a side view of a machine having our improvements applied to it. Fig. 2 is a vertical section of the saine, taken in the line x x, Fig. 1. Fig. 3 is a plan or top View of the same. n

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to certain improvements on a machine for making upholsterysprings, for which Letters Patent were granted to us bearing date September 28, 1858.

The within described invention consists, first, in a cutting attachment applied to the machine, and arranged to operate automatically, as hereinafter shown and described, for

'the purpose of cutting off the springs and bending their ends as said springs are formed from the continuous wire.

The invention consists, second, provemcnt in the part for bending ling the bending of the springs, as described.

To enable those skilled in the art io fully understand and construct our invention, we will proceed to describe it.

A representsa framing, which may be constructed in any proper way, to support the working parts. On the upper part of said framing A a head, B, is secured, in which two shafts, O O, are fitted, one over the other in the same plane, and connected by gears ct a, the upper shaft being fitted in movable or adjustable bearings' which are regulated by by set-screws b.

To one end of each shaft C a roll D is attached, the rollof one shaft being directly over the other, and both rolls having a groove, c, made circumferentially in its periphery.

in an iinor controlhereinafter To the end of the lower shaft O-that is, opposite the end where its rollB is attachedthere is secured a toothed wheel, E. This wheel E gears into a pinion, d, the axis d of which has a smaller pinion, c, attached, said pinion e gearing into a wheel, F, which is placed onashaftf,in thclower part oftheframing A. On the I said pinion gearing into a wheel, G, which is I placed framing, said shaft h having a cam, t, on it near one end. I In the framing A there is placed a lever, H, I the fulcrum-pin of which is shown at j. The I upper part of this lever H extends above the top ofthe framing A, and it has a roll, I, tted in it, which roll is grooved circumferentially, and rather wider and deeper than the grooves c in the rolls D. The roll I- is opposite the upper roll D, as shown clearly in Fig. 1. To the upper part of the lever H a bar, J, is attached by a pivot or bolt, 7c. This bar is curved so as to extend over the upper roll D, as shown clearly at 'Z in Fig. 2. `The lower end of lever H bears against the cam t', which cam is ot' heart shape, as shown clearly in Fig. 1.

On the upper part of the 'framing A there is secured a projection, m, to which a vertical plate, n, is attached, and also a stationary cutter, 0, the cutter 0 being by the side of plate m, as shown clearly in Figs. 1 and 3.

To the upper part of the framing A, and a little inward of the stationary cutter o, there is attached. a vertical plate, p, and between the plate p and cutter o' there is secured by a pivot, q, a lever, K, having a cutter, r, on its upper edge. rPhe lever K extends down below the upper part of the framing A, and has a bar, L, attached by a pivot, s, said bar resting on a ledge, t, on a pendant, M, attached to the upper part of the framing, and retained thereon by a spring, ce.

On the shaft j' a bent lever, N, is placed loosely. The form of this lever is clearly shown in Fig. 1, and its upper part rests on a pin, u, attached to pendant M.

O, is placed, said shaftf a pinion, g, is placed,

on a shaft, h, in the lower part-of the 1n the upper part of the framing A a shaft,

The operation of Vthe machine is as follows: Motion is given the shaft O by any proper means, and the wire T is passed between the two rolls D D, and the wire passes upward and bears against the roll I in the upper end of lever H, which roll is moved in and out from the upper roll, D, by means of the heartshaped cam fZ and the action of the wire T against it. The wire is bent in spiral form, and springs of biconical shape produced by the movement of'the'roll I in and out from the upper roll, D. This operation is precisely the same as in the patented machine of ours'previously alluded to. The bar, J, however, on account of its inclined part Z, controls or guides the convolutions ofthe wire and insures its proper bending, and the plates n 19 causeA the wire to pass between the cutters o r, and also insure the wire being cut oli with a terminal bend, a as shown in Fig. 3, the spring being cut at the proper time, in consequence of the lever K being actuated by the operation of the cam o aga-inst the bar L, the latter being thrown in line with the plane ofthe movement of the cam, in consequence of the pin 11X on wheel G actuating the bent lever N. This movement of the lever' K, it will be seen, is perfectly arbitrary, and the springs are all cut oft at the proper points from the wire T, as the latter is fed continuously between the rolls D D. The bent terminal end aiX prevents the ends of the springs from abrading the canvas or cloth with which they are in contact.

In consequence of having the bar Jcurved, as

shown at Z, the wire T is guided so as to insure the proper bending of the samey into the desired form of spring. 1

Ve do not claim the rolls D D I, for they have been previously used, and may be seen in the machine formerly patented by us, and previously alluded to. Neither do we Vclaim the bar J, irrespective of its peculiar form or bend Z, for astraight bar comparatively inefcient was used in our formerimachine; but,

Having thus described our invention, what we do claim as new, and desire to secure by Letters Patent, is-` 1. The cutters o r, attached ,to the machine and arranged relatively with the rolls D D I and bar J, when the movable cutter r is actuated automatically by suitable mechanism to out the springs as formed from the continuous Wire T. l

2. The bar J, attached to the lever H, or other part of the machine or framing, when provided with a bend, Z, to project over the uppermost roller, D, for the purpose of guiding and insuring the turning or bending ofthe Wire T, as set forth.A

3. The plates n p, when used in connection with fthe-shears or, for the purpose of cutting off the springs and bending the ends thereof sim ultaneousl y, and substantially as described.

G. A. YOUNG.

S. W. YOUNG.

Witnesses:

CHARLES A. TUCKER, PREsToN D. YERRINGTON. 

